1. 1 of 31 Images from Africa

2. 2 of 31 My little Haitian friend Antoine (1985)

3. 3 of 31 Solid Terrain Models http://www.stm-usa.com/

4. 4 of 31 3D Touch Table

5. 5 of 31 Overview Variables & Expressions Basic C# Syntax Comments Declaring & initializing variables Flow control Boolean logic Branching & looping Advanced types enum, struct, Array Type conversions Functions Variable scope

6. 6 of 31 Basic C# Syntax

7. 7 of 31 Comments //, ///, /* */

8. 8 of 31 Declaring & Initializing variables ; = ; OR = ;

9. 9 of 31 Types – esp. Value Apart from bool, char, & enum, value types have a range of numbers they support (p. 37) TypeRange byte0 to 255 sbyte-128 to 127 short-32768 to 32767 int-2147483648 to 2147483647

10. 10 of 31 For real numbers …

11. 11 of 31 Most commonly used types int string double bool char

12. 12 of 31 Variable names & initial values = ; Variable names Cannot Be a C# keyword Begin with a number or special char except _ and @ Contain numbers and chars (-, ', etc) Should Be camelCase Describe the content Initial values 0 for numbers or what makes sense for app string.Empty / "" for strings, etc.

13. 13 of 31 Expressions = Output z = ++x // z assigned value x + 1 z = x++ // z assigned value of x before x is incremented

14. 14 of 31 Overview Variables & Expressions Basic C# Syntax Comments Declaring & initializing variables Flow control Boolean logic Branching & looping Advanced types enum, struct, Array Type conversions Functions Variable scope

15. 15 of 31 Boolean Logic

16. 16 of 31 Branching with if

17. 17 of 31 Branching with switch

18. 18 of 31 Looping with for

19. 19 of 31 Looping with while If condition is false, while is not executed at all.

20. 20 of 31 Looping with do Executed once before condition is checked

21. 21 of 31 Interrupting loops break Exit from loop continue Return to top of loop return Exit from loop & containing function

22. 22 of 31 Overview Variables & Expressions Basic C# Syntax Comments Declaring & initializing variables Flow control Boolean logic Branching & looping Advanced types enum, struct, Array Type conversions Functions Variable scope

23. 23 of 31 Advanced types – enum To constrain the possible values for a variable Declared at same level as class Plain text names associated with number

24. 24 of 31 Advanced types – struct A custom, multi-valued, type that can have functions Declared at same level as class Can contain value types (int, long, double, etc) and strings

25. 25 of 31 Advanced types – Array Making it easier to create/access groups of values of the same type

26. 26 of 31 Overview Variables & Expressions Basic C# Syntax Comments Declaring & initializing variables Flow control Boolean logic Branching & looping Advanced types enum, struct, Array Type conversions Functions Variable scope

27. 27 of 31 Type conversions Types with smaller range can be implicitly converted to types with larger range Other types MAY be explicitly converted target_type outvar = (target_type) variableName

28. 28 of 31 Functions: Defining and calling Syntax for defining functions: [ scope] [static] return_type name ([params]) { // C# statements [return [return_value]]; } 0 or more params are declared like variables and comma separated.

29. 29 of 31 Params by ref and by value

30. 30 of 31 Variable Scope

31. 31 of 31 Funny if it wasn’t true air transat ad My version